Vanilla Essential Oil for Body, Hair, Skin, Aroma, Diffuser, and Fragrance by Lifemantraa, 15ml. Essential oils are a key ingredient in DIY, home-made natural products for those who prefer living a more natural lifestyle. Our essential oils for aromatherapy can be mixed and matched at will, giving you a wide range of DIY possibilities. Add essential oils to unscented base products including candles, soaps, shampoo, bath bombs, shower steamers, and both skin care and hair care products to create scented products.